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Finding the Fourth Proportional to 5,232, 7,220.16 and 2,874.09

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Solution

The fourth proportional to 5,232, 7,220.16 and 2,874.09 is: 3,966.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,232 : 7,220.16 = 2,874.09 : x
  2. Step 2: Convert to fraction form
    5,232/7,220.16 = 2,874.09/x
  3. Step 3: Cross multiply
    5,232x = 7,220.16 × 2,874.09
  4. Step 4: Simplify right side
    5,232x = 20,751,389.65
  5. Step 5: Solve for x
    x = 20,751,389.65/5,232
  6. Step 6: Final answer
    x = 3,966.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.